Prepainted steel coil is based on galvanized steel coil or galvalume steel coil as substrate, that has had paint applied to both sides through a continuous coil coating process, which produces a uniform paint finish. The metal is unwound, cleaned and chemically treated during the process. Depending on product specifications, one or both sides may then be primed and coated, oven cured and rewound. Usually the paint is used with polyester paint, silicone modified polyester, high-durable paint, pvdf paint or other specified paint.

A polymer coating is available in various colours as well as a matte, lustre or decorative natural finish (granite, wood, etc). Organic coated galvanised steel is corrosion-resistant, has excellent mechanical properties and can be formed, profiled or stamped.

Advantages of JINBOWANTONG prepainted steel coil

Corrosion resistance / Resistance ultraviolet rays / Resistance to humid heat / Resistance to low temperature

Classification and properties of Prepainted steel

Base materials

Prepainted steel coil is based on galvanized / galvalume steel coil as substrate, The greater the thickness of the zinc / al-zinc coating, the better the corrosion resistance.

The thickness of the zinc / al-zinc coating mainly affects the cut corrosion performance of the pre-painted galvanized steel coils, and the influencing factors include the finish coating, primer, substrate thickness, and metal coating thickness.

We produce pre-painted steel coils for galvanized / galvalume steel substrates with metallic coating of G40, G60, and G90. Please select the appropriate one according to the use environment.